Spin analog of the controlled Josephson charge current

Abstract

We propose a controlled Josephson spin current across the junction of two non-centrosymmetric superconductors like CePt_3Si. The Josephson spin current arises due to direction dependent tunneling matrix element and different momentum dependent phases of the triplet components of the gap function. Its modulation with the angle ξbetween the noncentrosymmetric axes of two superconductors is proportional to \sin ξ. This particular dependence on ξmay find application of the proposed set-up in making a Josephson spin switch.

4 pages, 1 figure; title is changed; article is rewritten

References in corpus (6)

• Heavy fermion superconductivity and magnetic order in non-centrosymmetric $CeP{t}_{3}Si$
• Superconducting 2D system with lifted spin degeneracy: Mixed singlet-triplet state
• Superconductivty without inversion symmetry: MnSi versus CePt_3Si
• CePt3Si: an unconventional superconductor without inversion center
• Order parameter in superconductors with non-degenerate bands
• Tunnel junctions of unconventional superconductors

Cited by in corpus (5)

• Nature and symmetry of the order parameter of the noncentrosymmetric superconductor Li2Pt3B
• Josephson Effect between Conventional and Rashba Superconductors
• Ginzburg-Landau theory of noncentrosymmetric superconductors
• Effect of helical edge states on the tunneling conductance in ferromagnet/noncentrosymmetric superconductors junctions
• Manifestation of helical edge states as zero-bias magneto-tunneling-conductance peaks in non-centrosymmetric superconductors